Fixing SamyGO telnet/SSH/SCP/bash on C/D/E/F series

[tempinbox]

Your rcEXT:

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#!/bin/sh

source /dtv/SGO.env

#echo "alias sgopwd='cd $1'" >> /dtv/SGO.env

echo "#!/mtd_rwarea/sh" > /dtv/sgoshfix
echo ". /dtv/SGO.env" >> /dtv/sgoshfix
echo "export HOME=\"$1\"" >> /dtv/sgoshfix
echo "export TERMINFO='$1/etc/terminfo'" >> /dtv/sgoshfix
echo "export TERM='xterm-color'" >> /dtv/sgoshfix
echo "export FRAMEBUFFER='/dev/sam/fb0'" >> /dtv/sgoshfix
echo "export LD_LIBRARY_PATH=\"$LD_LIBRARY_PATH\"" >> /dtv/sgoshfix
echo "export PATH=\"$PATH\"" >> /dtv/sgoshfix
echo "export SYSROOT=\"$SYSROOT\"" >> /dtv/sgoshfix
echo "export PS1='\u@tv:\w \\$ '" >> /dtv/sgoshfix

chmod +x /dtv/sgoshfix

ln -s "$SYSROOT/opt/privateer/usr/bin" /dtv/bin

for i in `cat $1/rcCMDs`
do
    cp /mtd_rwarea/busybox /dtv/bin/$i
done

$1/etc/rc.fix_telnetd&

Now run:

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source /dtv/SGO.env
$SYSROOT/rcEXT $SYSROOT

here is what i get

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/ # source /dtv/SGO.env
/ # $SYSROOT/rcEXT $SYSROOT
ln: /dtv/bin/bin: Operation not permitted
killall: telnetd: no process killed
/dtv/usb/sda1/SamyGO/etc/rc.fix_telnetd: line 5: telnetd: not found

[sectroyer]

Okay good now in rc.fix_telnetd put this:

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#!/mtd_rwarea/sh
killall telnetd
. /dtv/sgoshfix
cd
/mtd_rwarea/busybox telnetd -l /mtd_rwarea/sh

And same test as last time

[tempinbox]

Okay good now in rc.fix_telnetd put this:

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#!/mtd_rwarea/sh
killall telnetd
. /dtv/sgoshfix
cd
/mtd_rwarea/busybox telnetd -l /mtd_rwarea/sh

And same test as last time

Same error again

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/ # source /dtv/SGO.env
/ # $SYSROOT/rcEXT $SYSROOT
ln: /dtv/bin/bin: Operation not permitted
killall: telnetd: no process killed

[sectroyer]

Nah the error is NOT the same Which script currently starts telnet for you ?
and after running the commands above run:

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ps aux | grep telnet

[tempinbox]

Nah the error is NOT the same Which script currently starts telnet for you ?
and after running the commands above run:

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ps aux | grep telnet

The script that run telnet is run.sh in the root of usb (sda1)

SpoilerShow

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#!/bin/sh
date > $1/ScriptOK

    if !([ -e /mtd_rwarea/busybox ]); then
            cp $1/busybox /mtd_rwarea/
            chmod 777 /mtd_rwarea/busybox
            sync
    fi
    if !([ -e /mtd_rwarea/sh ]); then
            ln -s /mtd_rwarea/busybox /mtd_rwarea/sh
            chmod 777 /mtd_rwarea/sh
            sync
    fi
    mount -t devpts devpts /dev/pts
    /mtd_rwarea/busybox telnetd -l /mtd_rwarea/sh
    /mtd_rwarea/busybox tcpsvd -vE 0.0.0.0 21 /mtd_rwarea/busybox ftpd -w / &
    sync
rm -f /mtd_rwarea/profile

here are the sesult

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/ #  source /dtv/SGO.env
/ # $SYSROOT/rcEXT $SYSROOT
ln: /dtv/bin/bin: Operation not permitted
killall: telnetd: no process killed
/ # ps aux | grep telnet
  661 root       1200 SW  /mtd_rwarea/busybox telnetd -l /mtd_rwarea/sh

[sectroyer]

I don't need any "results" for now Simply run this:

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cp /mtd_rwarea/busybox /mtd_rwarea/telnetd

and in run.sh replace this line:

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/mtd_rwarea/busybox telnetd -l /mtd_rwarea/sh

with this line:

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/mtd_rwarea/telnetd -l /mtd_rwarea/sh

reboot and then post results

[tempinbox]

I don't need any "results" for now Simply run this:

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cp /mtd_rwarea/busybox /mtd_rwarea/telnetd

and in run.sh replace this line:

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/mtd_rwarea/busybox telnetd -l /mtd_rwarea/sh

with this line:

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/mtd_rwarea/telnetd -l /mtd_rwarea/sh

reboot and then post results

here are the result

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root@tv:/dtv/usb/sda1/SamyGO #

now the fix seems works but i find in the history commands that i don't even run

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test -e '/dtv/usb/sda1/SamyGO/opt/privateer/usr/b
in/samyGOrc' && printf '\x23\x59\x45\x53\x21\n' || printf '\x23\x4e\x4f\x21\n' &
& printf '\x23\x45\x4f\x46\n'

and i don't know what are for.
thanks for getting this working now i can try to get this --> viewtopic.php?f=75&t=8904 working on c series. any hints?

[sectroyer]

In history you also have commands that SamyGO scripts run

[miazza]

FOR E SERIES YOU HAVE TO DO THIS!!!!!!

You have to use dropbearmulti from archive attached in this post to get scp working for telnet and SSH it is enough to locate in /mnt/etc/rc.sysinit these lines:

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echo "export PS1='# '" >> /mtd_rwarea/profile
echo -e "ENV=/dtv/.ashrc\nexport ENV\n" >> /mtd_rwarea/profile

And change it to:

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echo "PS1='root@tv:\w \$ '" >> /mtd_rwarea/profile
echo -e "ENV=/dtv/.ashrc\nexport ENV\n" >> /mtd_rwarea/profile

ln -s /mnt/bin/ /dtv/bin

Than I have modified ./etc/init.d/01_01_catch_crap.init. I fixed the line with wrong path to mount.ko and added three more. Now it looks like this:

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    [ -e $MOD_DIR/kernel/drivers/pty/mount.ko ] && insmod $MOD_DIR/kernel/drivers/pty/mount.ko || echo "mount.ko not found."

    /bin/mount -o bind /mtd_rwarea/passwd /etc/passwd
    /bin/mount -o bind /mtd_rwarea/profile /etc/profile
    /bin/mount -o bind /mnt/bin/sh /bin/sh

Finally fix for telnetd (the same file) :

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    export HOME=/mnt/
    export PS1='root@tv:\w \$ '
    $SYSROOT/bin/busybox2 telnetd  -l /mnt/bin/sh

We need to change /bin/sh to /mnt/bin/sh (although at this moment it doesn't matter since we already mount-binded it ) and set up HOME and PS1 variables.

For scp we also needto change dropbearmulti to the one from the archive. Then we just make a symbolic link to dbclient:

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ln -s /mnt/opt/privateer/usr/sbin/dropbearmulti /mnt/bin/dbclient
ln -s /mnt/opt/privateer/usr/sbin/dropbearmulti /mnt/bin/scp
ln -s /mnt/opt/privateer/usr/sbin/dropbearmulti /mnt/opt/privateer/usr/sbin/dropbear

After this I have working bash history, telnet, ssh and scp

EDIT: Attached my /mnt/bin/busybox and dropbearmulti binaries.

So for F8000 I have to follow this except this. Right ?

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    [ -e $MOD_DIR/kernel/drivers/pty/mount.ko ] && insmod $MOD_DIR/kernel/drivers/pty/mount.ko || echo "mount.ko not found."

And this will allow me to have a real telnet that provides me echo ?

Right now with Win 8.1 if I map the TV in the network I can see USB,Root and RWCommon. Tjis is quite dangerous if somebody from family is deleting files....
On ES800 I can only see USB.

[sectroyer]

So for F8000 I have to follow this except this. Right ?

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    [ -e $MOD_DIR/kernel/drivers/pty/mount.ko ] && insmod $MOD_DIR/kernel/drivers/pty/mount.ko || echo "mount.ko not found."

Yeah I think so. You should find the line with SRS_module.ko and AFTER that put next 3 lines

And this will allow me to have a real telnet that provides me echo ?

Well not sure if it will fix it but you will definitely need it to make "echo work"

Right now with Win 8.1 if I map the TV in the network I can see USB,Root and RWCommon. Tjis is quite dangerous if somebody from family is deleting files....
On ES800 I can only see USB.

I don't udernstand a thing but I can tell you that if you format disk with your Win 8.1 you should be able to install Linux